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Another interesting note, the Tannoy true point-source Dual Concentric©

 

monitors are free from

the physical offsets previously described, which means that the behavior of the Dual Concentric
monitors will not change in the horizontal, vertical or any other plane you can pick. The other neat
thing about Dual Concentric

 

monitors is that no matter how close you get to them you can’t get

the image to fragment into separate high and low frequency sources.

Now, if you were to follow the all too common practice of lying your two way monitors on their
side to give you better sight lines over your meter bridge, you can see (and hear) what will
happen. With the monitor on its side, moving your head horizontally means you are now moving
through all those rays, or lobes, where the wavefronts from the woofers and tweeters interfere
with each other. The midrange frequency response will be different for each head position. All two
way component monitors, no matter who manufactures them, need to be used with the multi-
driver axis vertical (that’s just the way it has to be when you’re in the near-field). And if you’re
wondering how three-way near-fields work with a whole bunch of speakers stuck all over the
baffle, well... you’ll quickly realize why we stopped at two way speaker systems.

Summary of Contents for Reveal Active

Page 1: ...Reveal Active Nearfield Monitors User Manual ...

Page 2: ...eakers 3 0 PLACEMENT OF THE SPEAKERS 3 1 Orientation 3 2 Positioning 3 3 Console Reflections 3 4 Speaker Mounting 3 5 Bass Ports 3 6 Equalization 4 0 PERFORMANCE DATA 5 0 TECHNICAL SPECIFICATIONS 6 0 SERVICING 6 1 Cabinet finish 6 2 Driver removal 6 3 Crossover 6 4 List of spare parts 7 0 WARRANTY 8 0 Declaration of Conformity ...

Page 3: ...d to allow the system to be used close to video monitors Don t put potted plants on top of your speakers or solder your signal leads out of phase Now that we ve got that out of the way let s talk about some of the technical things to keep in mind 2 1 Unpacking and visual checks To remove the speakers from the carton without damage open the end flaps fully and bend them right back remember they are...

Page 4: ...system Connect the audio signal source console output to the input connector combined XLR jack socket at the back of the monitor location 3 As indicated on the silk screen printing the input connector is wired to the balanced input as indicated below XLR input Jack input Signal pin 2 Tip T Signal pin 3 Ring R Ground pin 1 Screen S Fig 1 If the source itself has a balanced output use shielded twin ...

Page 5: ...ptimize the speaker orientation When you are very close to a speaker system vertical head movements are significant because your movement represents a large change in angle of arc and therefore the number of degrees above and below the axis that s the line between the woofer and tweeter In other words bob your head up and down a few centimeters within a metre of the cabinet and your ear moves thro...

Page 6: ...l produce numerous lobes producing changes in midrange sound character as you move across the horizontal listening plane HORIZONTAL Stereo occurs from left to right so that is the listening plane in which we try to minimise the changes in physical time offset between the woofers and tweeters And we have to be honest it s not perfect the driver offset is still there but by stacking the woofer and t...

Page 7: ...s on their side to give you better sight lines over your meter bridge you can see and hear what will happen With the monitor on its side moving your head horizontally means you are now moving through all those rays or lobes where the wavefronts from the woofers and tweeters interfere with each other The midrange frequency response will be different for each head position All two way component moni...

Page 8: ...nge of about 24 600mm If you can you should line your ears up with the vertical speaker axis half way between the woofer and the tweeter Remember the earlier drawings showing your ears and the speaker these were to get your normal listening position lined up in the best spot possible If this would have you resting your chin on the console you could tilt the monitor back slightly This keeps your he...

Page 9: ...rial equalizer once the waves cancel there is nothing left to boost You may also notice that as you move your head the filtering changes so any equalization you attempted to apply for one position would be detrimental to all the other listening positions We mentioned that there are two things happening here The second thing is a change in directivity caused by the addition of a boundary the consol...

Page 10: ...nd your listening position is like using a cotton bud on your ear You can repeat the process with an extra 3000mm 10 feet of string to see which surfaces will influence the timbre and imaging of your mix This exercise is not just about finding places to stick fuzzy or foamy absorbers to the last thing you want to do is make your room completely dead What this process will show you is which surface...

Page 11: ... manual s about But we realize that equalization is sometimes a necessary evil If you have a choice of equalizers for monitor applications less is more The fewer the number of filters the better the equalizer will sound A stereo five band parametric is better than a stereo 15 band that is better than a stereo 1 3 octave You may not realise that in all but one or two brands of 1 3 octave equalizers...

Page 12: ...Hz Maximum SPL 2 114 dB Distortion 0 8 Electronic section Input 32 kΩ balanced on combined XLR jack Sensitivity 0 775 Vrms 0 dBu Crossover frequency 3000 Hz Amplifier output power LF 50 W rms 4 Ω HF 50 W rms 4 Ω Output noise 80 dBV Power supply Fixed mains voltage IEC inlet with detachable power cord Power consumption 10 to 160 VA ...

Page 13: ...ay the cabinet on its back Remove the six hexagonal screws and set aside Ease the driver from the front of the cabinet taking care not to mark the front surface Remove the driver note the polarity of the internal connections and disconnect the internal wiring Take care not to damage the moving parts of the LF driver To refit the driver connect the cables from the crossover to the LF terminals Fit ...

Page 14: ...r from the date of manufacture subject to the absence of or evidence of misuse overload or accidental damage For further information please contact your dealer or the distributor in your country If you cannot locate your distributor please contact Customer Services Tannoy Ltd Coatbridge Strathclyde ML5 4TF Telephone 01236 420199 UK 44 1236 420199 International Fax 01236 428230 UK 44 1236 428230 In...

Page 15: ... allowing radio and telecommunications equipment and other apparatus to operate as intended and the apparatus has an adequate level of intrinsic immunity to electromagnetic disturbance to enable operation as specified and intended The apparatus complies with the Principal Elements of the Safety Objectives of the Low Voltage Directive 73 23 EEC Details of the Apparatus Tannoy Active Monitor Loudspe...

Page 16: ...236 420199 Fax 44 0 1236 428230 Internet http www tannoy com Tannoy North America Inc 335 Gage Avenue Suite 1 Kitchener Ontario CANADA N2M 5E1 Telephone 519 745 1158 Fax 519 745 2364 Tannoy Nederland BV Anthonetta Kuijlstraat 19 3066 GS Rotterdam THE NETHERLANDS Telephone 010 2860554 Fax 010 2860431 GH 1 st Dec 1998 ...

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